Slag adjusting and slag splashing enhancing furnace protection mechanism in steel tapping process

Abstract

The utility model relates to the technical field of steel production, and discloses a slag adjusting and slag splashing enhancing furnace protection mechanism in the tapping process, which comprises a bottom plate and a pneumatic control valve fixedly connected to the top end of the bottom plate, an adjusting mechanism is arranged at the top end of the bottom plate, and a filtering mechanism is arranged on the adjusting mechanism. A connecting rod is pulled to move back and forth, meanwhile, a supporting rod is driven to move in the process of pulling the connecting rod to move, when the connecting rod moves backwards, a sliding rod and a positioning block are driven to move, at the moment, the positioning block is extruded by a positioning groove, and then the sliding rod is driven to move upwards to extrude a spring; and when the coke powder moves to the position of the next positioning groove, the spring rebounds and resets to push the positioning block to be inserted into the positioning groove, so that the blocking range of the adjusting stop block to the interior of the connecting sleeve can be adjusted, the conveying amount of the coke powder can be adjusted, the coke powder is uniformly sprayed on the furnace lining, and the protection effect of the furnace lining is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel production, and in particular relates to a slag regulating and enhanced slag splashing furnace protection mechanism in a steel tapping process. Background Art

[0002] Slag splashing technology has been used for many years to protect the converter and extend its service life. my country began developing a slag splashing technology tailored to domestic conditions in the 1990s. This technology involves injecting high-pressure nitrogen through a lance, spraying slag onto the furnace lining to form a protective layer of slag. This prevents direct contact between the molten steel and slag during the next smelting cycle, thereby slowing erosion of the refractory bricks and extending the service life of the converter.

[0003] A search of CN218059079U disclosed a low-cost and high-efficiency converter slag splashing device, which allows coke powder to enter the interior of the injection mixing bin by opening the first electric discharge valve. The staff closes the valve on one side of the blowing pipe and opens the valve on the mixing pipe to allow the nitrogen generated by the pneumatic control valve cabinet to enter the interior of the injection mixing bin, and then opens the second electric discharge valve to allow the coke powder to enter the interior of the blowing pipe through the connecting pipe, so that the coke powder is sprayed into the interior of the converter body, automatically performing slag splashing to protect the furnace, and achieving low-cost and high-efficiency slag splashing, thereby improving work efficiency and staff safety.

[0004] When the device is injecting coke powder into the converter, it is directly injected into the converter through the blowing pipe. This makes it impossible to control the amount of injected coke powder, which affects the protection effect of the furnace lining and reduces the protection quality of the furnace lining.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the above technical problem that when the device is injecting coke powder into the converter, the coke powder is directly injected into the converter through the blowing pipe, which makes it impossible to control the amount of injected coke powder, thereby affecting the protection effect of the furnace lining and reducing the protection quality of the furnace lining, the basic concept of the technical solution adopted by the utility model is:

[0007] A slag adjustment and splashing protection mechanism for a steel-tapping process, comprising a bottom plate;

[0008] A pneumatic control valve is fixedly connected to the top of the base plate. The top of the base plate is provided with an adjustment mechanism, and a filtering mechanism is provided on the adjustment mechanism. The adjustment mechanism includes a connecting pipe connected to the output end of the pneumatic control valve:

[0009] The top end of the fixing plate is provided with a fixing sleeve, and the fixing sleeve has a fixing groove, and the fixing sleeve has a fixing groove on the inner wall of the fixing sleeve, and the fixing sleeve has a fixing groove on the inner wall of the fixing sleeve.

[0010] As a preferred embodiment of the present invention, the filter mechanism includes a filter frame connected to the connecting sleeve, a mounting groove is provided on the top of the filter frame, a card is clamped on the inner wall of the mounting groove, and a filter plate is fixedly connected to the bottom of the card.

[0011] As a preferred embodiment of the present invention, the adjusting block is made of rubber, and the outer wall of the adjusting block fits snugly with the inner wall of the connecting sleeve.

[0012] As a preferred embodiment of the present invention, there are several positioning grooves, and the positioning grooves are evenly and equidistantly distributed on the top of the bottom plate.

[0013] As a preferred embodiment of the present invention, the outer wall of the positioning block is provided with an inclined surface, and the outer wall of the positioning groove fits snugly with the outer wall of the positioning block.

[0014] As a preferred embodiment of the present invention, the outer wall of the filter plate fits snugly with the inner wall of the filter frame.

[0015] As a preferred embodiment of the present invention, there are two mounting grooves, which are distributed on the inner wall of the filter frame in a bilaterally symmetrical structure, and the inner wall of the mounting groove fits snugly with the outer wall of the card plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the cam is in the air, the cam is moved back and forth to move the adjusting block forward and backward inside the connecting sleeve, and the cam is moved to the position where the cam is moved.

[0018] According to the utility model, when the coke powder passes through the connecting pipe, it can pass through the filter frame. At this time, the coke powder can pass through the filter plate for filtering, so that the impurities inside the coke powder can be blocked and filtered, preventing the impurities from being blown into the converter and affecting the quality of the subsequent slag splashing furnace protection. When removing the filter plate, directly pull upward to disengage the clamping plate from the mounting groove, and the filter plate can be completely removed. When installing, align the clamping plate with the mounting groove so that it is clamped therein to complete the installation.

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached figure:

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the utility model from the top;

[0023] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0024] Figure 4 This is a partial structural diagram of the adjustment mechanism of the utility model;

[0025] Figure 5 This is a schematic diagram of the separation structure of the filter mechanism of the utility model.

[0026] In the figure: 1. Base plate; 2. Pneumatic control valve; 31. Adjusting mechanism; 311. Connecting pipe; 312. Connecting sleeve; 313. Adjusting block; 314. Connecting rod; 315. Support rod; 316. Roller; 317. Fixed sleeve; 318. Spring; 319. Slide rod; 3110. Positioning block; 3111. Converter; 3112. Limiting slide groove; 3113. Positioning groove; 32. Filtering mechanism; 321. Filter frame; 322. Mounting groove; 323. Card plate; 324. Filter plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0028] like Figures 1 to 5 As shown, a slag adjustment and enhanced slag splashing furnace protection mechanism for the steel tapping process includes a bottom plate 1, a pneumatic control valve 2 fixedly connected to the top of the bottom plate 1, an adjusting mechanism 31 is provided on the top of the bottom plate 1, a filtering mechanism 32 is provided on the adjusting mechanism 31, and the adjusting mechanism 31 includes a connecting pipe 311 connected to the output end of the pneumatic control valve 2, a connecting sleeve 312 is provided in the connecting pipe 311, a through groove is provided on the outer wall of the connecting sleeve 312, an adjusting block 313 is slidably connected to the inner wall of the through groove, and a connecting rod 314 is fixedly connected to the outer wall of one end of the adjusting block 313, a supporting rod 315 is fixedly connected to the outer wall of the connecting rod 314, and a supporting rod 315 is fixedly provided at the bottom end of the supporting rod 315. It is connected to a roller 316, and the outer wall of the connecting rod 314 at one end away from the adjusting block 313 is fixedly connected to a fixing sleeve 317, and a sliding hole is provided at the bottom end of the fixing sleeve 317, and a spring 318 is fixedly connected to the inner wall of the sliding hole, and the spring 318 is fixedly connected to a sliding rod 319 at one end away from the sliding hole, and the sliding rod 319 is fixedly connected to a positioning block 3110 at one end away from the spring 318. The top of the bottom plate 1 is fixedly connected to the converter 3111, and a limiting slide groove 3112 is provided at the top of the bottom plate 1. The roller 316 is rotatably set on the inner wall of the limiting slide groove 3112, and a positioning groove 3113 is provided at the top of the bottom plate 1. The outer wall of the positioning block 3110 is clamped on the inner wall of the positioning groove 3113.

[0029] Furthermore, the material of the adjustment block 313 is rubber, and the outer wall of the adjustment block 313 fits snugly with the inner wall of the connecting sleeve 312 . By setting it to rubber material, a good close sealing effect can be formed with the inner wall of the connecting sleeve 312 .

[0030] Furthermore, there are a plurality of positioning grooves 3113 , which are evenly and equidistantly distributed on the top of the bottom plate 1 , so that the adjustment block 313 can be adjusted in multiple gears to adjust the coke powder throughput of more specifications.

[0031] Furthermore, the outer wall of the positioning block 3110 is provided with a slope setting, and the outer wall of the positioning groove 3113 is fitted with the outer wall of the positioning block 3110. Through the set slope setting, it can be squeezed with the positioning groove 3113 during the movement, so that it can move upward, thereby facilitating the adjustment of the position of the limit adjustment block 313.

[0032] The filter mechanism 32 includes a filter frame 321 connected to the connecting sleeve 312. The top of the filter frame 321 is provided with a mounting groove 322. The inner wall of the mounting groove 322 is clamped with a clamping plate 323. The bottom of the clamping plate 323 is fixedly connected to a filter plate 324.

[0033] Furthermore, the outer wall of the filter plate 324 fits snugly against the inner wall of the filter frame 321 , thereby preventing coke powder from passing through the connecting pipe 311 without being filtered by the filter plate 324 , and further improving the stability of the filter plate 324 after installation.

[0034] Furthermore, there are two mounting grooves 322, which are distributed on the inner wall of the filter frame 321 in a left-right symmetrical structure. The inner wall of the mounting groove 322 fits snugly with the outer wall of the card plate 323, so that the left and right sides of the card plate 323 can be supported and connected synchronously, thereby improving the stability of the filter plate 324 after installation.

[0035] The implementation principle of the slag adjustment and enhanced slag splashing furnace protection mechanism during the steel-making process of this embodiment is as follows: after the coke powder is transported to the inside of the connecting pipe 311, the pneumatic control valve 2 is started to transport the coke powder to the converter 3111 through high-pressure gas to perform the slag splashing furnace protection operation. When it is necessary to adjust the flow rate of the coke powder transported by the connecting pipe 311, the connecting rod 314 can be pulled to move back and forth. When the connecting rod 314 moves, the adjustment block 313 can be driven to move back and forth inside the connecting sleeve 312. At the same time, in the process of pulling the connecting rod 314 to move, the support rod 315 will be driven to move. When the support rod 315 moves, the roller 316 can be driven to move on the inner wall of the limiting slide groove 3112, so that the connecting rod 314 can be adjusted. The connecting rod 314 and the adjusting block 313 provide support. When the connecting rod 314 moves backward, it will drive the sliding rod 319 and the positioning block 3110 to move. At this time, the positioning block 3110 will be squeezed by the positioning groove 3113, and then drive the sliding rod 319 to move upward to squeeze the spring 318. When it moves to the next positioning groove 3113 position, the spring 318 can rebound and reset to push the positioning block 3110 into it. In this way, the blocking range of the adjusting block 313 on the inside of the connecting sleeve 312 can be adjusted to achieve the purpose of adjusting the amount of coke powder passing through. In this way, the coke powder delivery amount can be adjusted so that the coke powder is evenly sprayed on the furnace lining, thereby improving the protection effect of the furnace lining.

[0036] When the coke powder passes through the connecting pipe 311, it can pass through the filter frame 321. At this time, the coke powder can pass through the filter plate 324 for filtering. In this way, the impurities inside the coke powder can be blocked and filtered to prevent the impurities from being blown into the converter 3111 and affecting the quality of the subsequent slag splashing furnace protection. When removing the filter plate 324, pull it upward directly to disengage the clamping plate 323 from the mounting groove 322, and the filter plate 324 can be completely removed. When installing, align the clamping plate 323 with the mounting groove 322 so that it is clamped therein to complete the installation.

Claims

1. A slag adjustment and splashing protection mechanism for a steel-tapping process, comprising a bottom plate (1); The pneumatic control valve (2) is fixedly connected to the top of the base plate (1), and is characterized in that: The top of the bottom plate (1) is provided with an adjusting mechanism (31), the adjusting mechanism (31) is provided with a filtering mechanism (32), and the adjusting mechanism (31) includes a connecting pipe (311) connected to the output end of the pneumatic control valve (2): The connecting pipe (311) is connected with a connecting sleeve (312), the outer wall of the connecting sleeve (312) is provided with a through groove, the inner wall of the through groove is slidably connected with an adjusting block (313), the outer wall of one end of the adjusting block (313) is fixedly connected with a connecting rod (314), the outer wall of the connecting rod (314) is fixedly connected with a supporting rod (315), the bottom end of the supporting rod (315) is fixedly connected with a roller (316), the outer wall of one end of the connecting rod (314) away from the adjusting block (313) is fixedly connected with a fixing sleeve (317), the bottom end of the fixing sleeve (317) is provided with a sliding hole, and the outer wall of the connecting rod (314) is fixedly connected with a fixing sleeve (317). A spring (318) is fixedly connected to the inner wall of the sliding hole, and the end of the spring (318) away from the sliding hole is fixedly connected to a sliding rod (319), and the end of the sliding rod (319) away from the spring (318) is fixedly connected to a positioning block (3110). The top of the base plate (1) is fixedly connected to a converter (3111), and a limiting sliding groove (3112) is provided at the top of the base plate (1). The roller (316) is rollingly arranged on the inner wall of the limiting sliding groove (3112), and a positioning groove (3113) is provided at the top of the base plate (1). The outer wall of the positioning block (3110) is clamped on the inner wall of the positioning groove (3113).

2. The slag adjustment and enhanced slag splashing and furnace protection mechanism during steel tapping according to claim 1 is characterized in that: The filtering mechanism (32) comprises a filter frame (321) connected to and arranged in a connecting sleeve (312); a mounting groove (322) is provided at the top of the filter frame (321); a clamping plate (323) is clamped on the inner wall of the mounting groove (322); and a filter plate (324) is fixedly connected to the bottom end of the clamping plate (323).

3. The slag adjustment and enhanced slag splashing and furnace protection mechanism during steel tapping according to claim 1 is characterized in that: The adjusting block (313) is made of rubber, and the outer wall of the adjusting block (313) fits snugly with the inner wall of the connecting sleeve (312).

4. The slag adjustment and enhanced slag splashing and furnace protection mechanism during steel tapping according to claim 1 is characterized in that: There are a plurality of positioning grooves (3113), and the positioning grooves (3113) are evenly and equidistantly distributed on the top of the bottom plate (1).

5. The slag adjustment and enhanced slag splashing and furnace protection mechanism during steel tapping according to claim 1 is characterized in that: The outer wall of the positioning block (3110) is provided with an inclined surface, and the outer wall of the positioning groove (3113) fits snugly with the outer wall of the positioning block (3110).

6. The slag adjustment and enhanced slag splashing and furnace protection mechanism during steel tapping according to claim 2 is characterized in that: The outer wall of the filter plate (324) fits snugly with the inner wall of the filter frame (321).

7. The slag adjustment and enhanced slag splashing and furnace protection mechanism during steel tapping according to claim 2 is characterized in that: There are two mounting grooves (322), and the mounting grooves (322) are distributed on the inner wall of the filter frame (321) in a bilaterally symmetrical structure. The inner wall of the mounting groove (322) fits snugly with the outer wall of the clamping plate (323).

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